Effects of gene polymorphism on efficacy and toxic effect of chemotherapy regimen containing oxaliplatin treatment in stage Ⅲ and Ⅳ colorectal cancer / 中国药房

OBJECTIVE To investigate the effects of GSTP1， XRCC1， ABCB1， MTHFR gene polymorphisms on efficacy and toxic effect of chemotherapy regimen containing oxaliplatin in patients with stage Ⅲ and Ⅳ colorectal cancer patients. METHODS Clinical data of 76 patients with stage Ⅲ and Ⅳ colorectal cancer who received chemotherapy regimen containing oxaliplatin （XELOX，FOLFOX） were collected from the Second Affiliated Hospital of Soochow University from September 2018 to March 2020. The correlation of genotypes with progression-free survival （PFS） and toxic effect was analyzed by using univariate and multivariate COX regression model. RESULTS Carriers of the ABCB1 3435T＞C locus C allele （TC/CC） had a significantly higher risk of progression compared to TT genotype patients [HR＝2.39， 95%CI （1.05，5.50）， P＝0.038]. The risk of progression in patients at stage Ⅳ was significantly higher than those at stage Ⅲ [HR＝8.11， 95%CI（3.39，19.40）， P＜0.001]. Chemotherapy regimen， Karnofsky performance status score and tumor site had no significant effect on disease progression （P＞0.05）. Mutations in gene loci were not correlated with adverse reactions （P＞0.05）. CONCLUSIONS Patients carrying ABCB1 TC/CC and receiving chemotherapy regimen containing oxaliplatin have a higher risk of disease progression， which may be associated with longer PFS in patients （TT genotype） with stage Ⅳ colorectal cancer receiving the chemotherapy， while GSTP1， XRCC1， and MTHFR gene polymorphisms have no significant impact.

Immune-Related Pancreatitis Caused by Immune Checkpoint Inhibitor Nivolumab:Report of One Case / 中国医学科学院学报

In recent years,great progress has been achieved in the application of immune checkpoint inhibitors (ICI) in tumor immunotherapy.However,a variety of adverse reactions induced by ICI have been reported.Despite the high overall incidence of adverse reactions caused by ICI,some adverse reactions,such as immune-related pancreatitis,are rare in clinical practice.In this paper,a case of immune-related pancreatitis after treatment of advanced gastric cancer with nivolumab was identified.We analyzed the cause,treatment,incidence,and risk factors of the adverse reaction,aiming to improve the clinical diagnosis,treatment,and safe medication of rare adverse reactions associated with ICI.

Study on population pharmacokinetics of dabigatran in elderly patients with non-valvular atrial fibrillation / 中国药房

OBJECTIVE To analyze influential factors for dabigatran exposure in elderly patients with non-valvular atrial fibrillation. METHODS The clinical information of 75 elderly patients diagnosed with non-valvular atrial fibrillation was collected from our hospital in Jan. 2019-Jun. 2020. One or two steady-state blood drug concentration samples were collected from each patient. NONMEM 7.2.0 software was used to establish a population pharmacokinetics model of dabigatran； the effects of different covariates on the apparent clearance of dabigatran were investigated， and the final model was verified by goodness of fit and Bootstrap method； NONMEM 7.2.0 software was used to analyze the drug exposure of ordinary elderly patients and elderly patients after taking dabigatran ester in different disease states. RESULTS Totally 122 blood concentration samples of dabigatran were collected. Advanced age， creatinine clearance and history of chronic heart failure were screened out as three significant covariates that influenced the clearance of dabigatran in elderly patients. The exposure of population with advanced age increased by about 50% compared with the general elderly， the exposure of population with history of chronic heart failure increased by nearly 30% compared with population without， and the exposure of population with moderate and severe renal injury increased by about 30% and 80% compared with mild. CONCLUSIONS Advanced age， renal injury and history of chronic heart failure are influential factors for elevated systemic exposure of dabigatran.

Increased risk of cardiovascular disease in elderly population with carotid plaque and low ankle brachial index / 中华心血管病杂志

Objective: To investigate whether the co-presence of carotid plaques and low ankle-brachial index (ABI) might increase the risks of ischemic cardiovascular and cerebrovascular event in elderly population. Methods: It was a prospective study. Participants from the elderly cohort of the Kailuan Study, who completed a carotid sonography and ABI examination, were included in this study. Participants underwent physical examinations between 2010 and 2011 and were divided into 3 groups: no carotid plaque and ABI>0.9 group (n=526), carotid plaque and ABI>0.9 group (n=1 067), and carotid plaques and ABI≤0.9 group (n=49). Follow up ended on the 31 December 2016. The incidence of ischemic cardiovascular and cerebrovascular event was compared between the 3 groups, the relationship between carotid plaque and low ABI with ischemic cardiovascular and cerebrovascular event was analyzed. Results: A total of 1 642 participants were included (age, (67.1±6.4) years). There were 1 028 males (62.6%) and 1 028 females(37.4%). The average follow-up time was 5.41 years, the incidence of ischemic cardiovascular and cerebrovascular event in the 3 group was 2.1%(11/526), 5.5%(59/1 067), and 12.2%(6/49),respectively; the incidence of myocardial infarction in the 3 group was 0.2%(1/526), 1.6%(17/1 067), 10.2%(5/49), respectively; the incidence of cerebral infarction in the 3 group was 1.9%(10/526), 3.9%(42/1 067) and 2.0%(1/49), respectively. Multivariate Cox risk proportional regression analysis showed that compared with the group without carotid plaque and ABI>0.9, the HR values (95%CI) of ischemic cardiovascular and cerebrovascular event in the group with carotid plaque and ABI>0.9, carotid plaques and ABI≤0.9 group were 3.52 (1.49-8.35), 7.16(2.11-24.26) respectively, after adjusting for sex,age,systolic blood pressure,fast blood glucose,body mass index,total cholesterol,smoke,alcohol consumption and lipid-lowering medication and antihypertensive medication. Conclusions: Co-presence of carotid plaques and low ankle-brachial index may further increase the risk of ischemic cardiovascular and cerebrovascular event among elderly population in this cohort.

Immunotherapy and Pharmaceutical Care for Non-small-cell Lung Cancer Complicated with Hyperthyroidism:Report of One Case / 中国医学科学院学报

Based on our experience in treating one patients with non-small cell lung cancer complicated with hyperthyroidism,the following considerations in immunotherapy and pharmaceutical care are proposed:role of iodine contrast and contrast agent selection in patients with hyperthyroidism;selection of hemostatic agents and assessment of thrombosis risk in patients with hemoptysis caused by tumor invasion of bronchus;influence of glucocorticoid use on the treatment with programmed cell death-1(PD-1)inhibitor and the role of PD-1 inhibitors in patients with a history of hyperthyroidism;education methods for patients refuse to receive opioids.The participation of clinical pharmacists in the Multiple Disciplinary Team and the multi-dimensional pharmaceutical monitoring for patients can improve the safety and rationality of medications.

Effect of IL-1β and NLRP3 on the inflammatory response of acne vulgaris / 中南大学学报(医学版)

To investigate the pathogenesis of acne vulgaris, and to provide new ideas for non-antibiotic therapy for acne vulgaris.
 Methods: Normal human epidermal keratinocyte (NHEK) was exposed to Propionibacterium acnes (P. acnes) [multiplicity of infection (MOI)=10, 20, 30] for 12, 24, or 36 hours. The enzyme-linked immunosorbent assay (ELISA) and real-time PCR were used to detect the protein and mRNA of IL-1β in NHEK. Three groups were set up as follows: A negative control group (no NHEK pretreatment), a positive control group (P. acnes was used to stimulate NHEK), and a siRNA group (pretreated NHEK with siRNA). ELISA, real-time PCR, and Western blotting were used to detect the protein, mRNA of IL-1β and nucleotide-binding oligomerization domain-like receptor containing pyrin domain 3 (NLRP3) in NHEK.
 Results: IL-1β of NHEK in the positive control group was significantly increased in a time and dose-dependent manner compared with the negative control group (P<0.05). After pretreating NHEK with siRNA, IL-1β level was decreased compared with the positive control group, but it was higher than that in the negative control group (P<0.05).
 Conclusion: P. ances can stimulate NHEK to secrete IL-1β, and the process is possibly involved in NLRP3. The inflammatory response induced by P. ances could be inhibited by suppressing the activity of NLRP3.

Tiaoxin Recipe, a Chinese herbal formula, inhibits microRNA-34a expression in the APPswe/PS1ΔE9 mouse model of Alzheimer's disease / 中西医结合学报

OBJECTIVE@#To investigate the effect and underlying mechanisms of Tiaoxin Recipe (a Chinese herbal formula) treatment on Alzheimer's disease (AD).@*METHODS@#Twelve-week-old APPswe/PS1ΔE9 (APP/PS1) double transgenic mice were used as a model of AD-afflicted mice. One group of mice was treated with Tiaoxin Recipe by gastrogavage for 12 weeks, while two other groups were given intraperitoneal injections of nicotinamide adenine dinucleotide or FK866 for 4 weeks. Morris water maze and thioflavin S staining tests were performed to evaluate cognitive impairment and amyloid plaque deposition, respectively. Serum amyloid-β1-42 (Aβ1-42) content was detected using an enzyme-linked immunosorbent assay, and quantitative reverse transcription-polymerase chain reaction was performed to examine the expression levels of microRNA-34a (miR-34a) in cortex and hippocampus samples of the study mice.@*RESULTS@#Compared with the normal control group, the memory and learning abilities of the APP/PS1 model group were found to be impaired (P < 0.01), as shown by the increased levels of senile plaque deposition in cortex and hippocampus (P < 0.01), miR-34a expression (P < 0.01) and serum Aβ1-42 content (P < 0.01). Treatment with Tiaoxin Recipe significantly reduced memory impairment (P < 0.01) by reducing amyloid plaque accumulation in cortex and hippocampus (P < 0.01), miR-34a expression (P < 0.01) and serum Aβ1-42 content (P < 0.01) in APP/PS1 mice.@*CONCLUSION@#Tiaoxin Recipe is a viable complementary or alternative therapeutic treatment that is capable of delaying the development of early-stage AD by inhibiting the expression of miR-34a.

Influence of Cyclophosphamidum Used in Different Time during Menstrual Cycle on Ovary Anti-mullerian Hormone / 中国药师

Objective:To preliminarily discuss the difference of ovary anti-miillerian hormone ( AMH) when cyclophosphamide is used in different time during menstrual cycle .Methods:Totally 30 young female patients with average age of (36 ±6.39) diagnosed as glomerular disease were treated with cyclophosphamide .According to the medication time , the patients were divided into follicular phase group and secretory phase group based on the property of menstrual cycle .Follicular phase group was treated with cyclophospha-mide during the first day and the eighth day of menstrual cycle .Secretory phase group was treated with cyclophosphamide after ovulato-ry time, namely the 14th day-the 16th day of menstrual cycle.AMH was detected before the drug treatment and 1st, 3rd, 6th and 10th cycles after cyclophosphamide treatment in the two groups .Results: AMH in the five periods had no statistic difference between the groups (P>0.05).There was significant difference in AMH before the treatment and after one-month treatment in the same group(P<0.05).AMH in different age groups showed statistic difference (P<0.05).Conclusion:There is no significant difference in AMH when cyclophosphamide is administrated in different time of menstrual cycle .However , ovarian function is impaired just by low dose cyclophosphamide (0.8g) with the first administration and will be recovered slowly at least half a year after the drug withdrawal .

Effects of application of vancomycin in the early stage of patients with extremely severe burn / 中华烧伤杂志

Objective@#To evaluate the effects of application of vancomycin in the early stage of patients with extremely severe burn, in order to provide reference to drug for anti-infection treatment in the early stage of patients with extremely severe burn.@*Methods@#Data of 15 patients of Kunshan explosion on August 2nd, 2014, admitted to the Department of Intensive Care in our hospital were retrospectively analyzed. The clinical efficacy of continuously intravenous dripping of vancomycin (combined with imipenem) in the early stage of burns (before and on post burn day 14) was analyzed. (1) The steady state plasma concentration of vancomycin was monitored respectively 30 min before the third, sixth, and tenth medication with direct chemiluminescent imaging method. (2) The distribution of Gram-positive bacteria of patients during hospitalization and their drug resistance to 14 antibiotics commonly used in clinic were analyzed. (3) Serum level of procalcitonin (PCT), white blood cell count, percentage of neutrophils before and after treatment, and efficacy grade of anti-infection treatment in the early stage of burns were analyzed. (4) Serum levels of aspartate transaminase (AST), alanine aminotransferase (ALT), creatinine before and after treatment, and the adverse effects during medication were analyzed. The WHONET 5.5 statistical software was used to analyze the distribution of Gram-positive bacteria in all the pathogens, and the status of drug resistance of Gram-positive bacteria to 14 antibiotics. Data were processed with Wilcoxon rank sum test.@*Results@#(1) Twenty-nine times of steady state plasma concentration monitoring were performed in the patients in total, with the steady state plasma concentration of vancomycin from 4.3 to 42.1 μg/mL. In the monitoring before third, sixth, and tenth medication, the percentages of result reaching the standard were respectively 1, 3/14, and 2/7. (2) A total of 79 Gram-positive bacteria were isolated, including 49 (62.03%) strains of Staphylococcus aureus, 9 (11.39%) strains of Staphylococcus haemolyticus, 7 (8.86%) strains of Staphylococcus epidermidis, 12 (15.19%) strains of Enterococcus faecium, and 2 (2.53%) strains of Enterococcus faecalis. The above-mentioned Staphylococcus strains were with high drug resistance to antibiotics including penicillins, erythromycin, ciprofloxacin, and low drug resistance to linezolid, teicoplanin, and nitrofurantoin. The above-mentioned Enterococcus strains were with high drug resistance to antibiotics including erythromycin, ciprofloxacin, gentamicin, and low drug resistance to linezolid and teicoplanin. The above-mentioned Staphylococcus strains were all sensitive to vancomycin. Two strains of vancomycin-resistant Enterococcus were detected in the above-mentioned Enterococcus strains. (3) Serum level of PCT, white blood cell count, percentage of neutrophils of patients were (8.1±7.5) ng/mL, (24±10)×109/L, and 0.898±0.029 before treatment, which were significantly higher than (3.0±2.8) ng/mL, (12±5)×109/L, and 0.867±0.016 after treatment (with Z values respectively -2.103, -3.237, and -3.068, P<0.05 or P<0.01). After the early treatment, excellence, progess, and invalid results were achieved in 7, 5, and 3 patients, with the effective percentage of 4/5 in clinic. (4) There were no statistically significant differences in serum levels of AST, ALT, and creatinine of patients between before and after treatment (with Z values respectively-0.057, -1.508, and -1.363, P values above 0.05). Only one patient had liver and renal dysfunction during treatment.@*Conclusions@#The positive and reasonable use of vancomycin can remove most of the Gram-positive bacteria, and control the development of sepsis combined with imipenem in the early stage of patients with extremely severe burn. However, the dose of vancomycin should be individualized and the steady state plasma concentration should be monitored to maintain the blood concentration within the safe and effective range, so as to improve the rational use of vancomycin.

The relationship between bone morphogenetic proteins-2 gene mutation and coal-burning skeletal fluorosis of children / 中华地方病学杂志

Objective To investigated the association between bone morphogenetic proteins-2 (BMP-2)gene mutation and coal-burning skeletal fluorosis of children in Zhijin Guizhou.Methods In 2010,121 cases of children with skeletal fluorosis were diagnosed based on the standard X-ray Diagnosis of Skeletal Fluorosis (WS192-1999) in coal-burning skeletal fluorosis areas in Zhijin Guizhou,and 50 cases of them were selected as skeletal fluorosis group.Thirty healthy children free of skeletal fluorosis,rickets and other bone related diseases excluded by X-ray were selected as a control group in the same area.Using polymcrase chain reaction combined with DNA sequencing technology,all three exons of BMP-2 gene were conducted sequence screening in skeletal fluorosis and the control groups to detect gene mutations.Results ①The T insertion mutation on exon 1 between 401-402 bp:the T insertion mutantion genotype frequencies of skeletal fluorosis group and the control group were 27.7％ (13/47)and 7.1％ (2/28),and the difference was statistically significant (x2 =4.600,P ＜ 0.05),adjusted OR value of 4.62(1.94-10.90).②)The 894 bp T→G mutation on exon 2:the TG genotype frequencies of skeletal fluorosis group and the control group were 14.0％ (7/50) and 16.7％(5/30),and the difference were not statistically significant (x2=0.103,P＞ 0.05).③The 1 046 bp A→G mutation on exon 2:the AA,AG,GG genotype frequencies of skeletal fluorosis group and the control group was 30.0％ (15/50),24.0％ (12/50),46.0％ (23/50) and 50.0％ (15/30),20.0％(6/30),30.0％ (9/30),and the differences were not statistically significant (x2 =3.099,P ＞ 0.05).Conclusion Exon 1at 401-402 bp,T insertion mutation and skeletal fluorosis are closely related.The relationship between A→Gmutation in exon 2 at 1 046 bp and skeletal fluorosis is not significant.

CpG methyltransferase induced down-regulation of claudin-7, -8 and its effects on proliferation and apoptosis of human colorectal cancer HT-29 cells / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To explore the regulatory effect of CpG methyltransferase (M.SssI) on expression of claudin-7 and claudin-8, promoting apoptosis and inhibiting proliferation of human colorectal cancer HT-29 cells.</p><p><b>METHODS</b>HT-29 cells were treated with M.SssI (50 U/ml) for 24 hours. The methylation status of claudin-7 and claudin-8 gene promoters was assayed by bisulfite sequencing PCR (BSP). Real-time PCR with SYBR green I technique was used to detect the relative expression of claudin-7 and -8 mRNA, and claudin-7 and claudin-8 proteins were tested by cell immunofluorescence and Western blotting, while the effect on cell apoptosis was assessed by Hoechst 33342 fluorescence and flow cytometry. Inhibition of cell proliferation was measured by MTT assay.</p><p><b>RESULTS</b>The amounts of methylated claudin-7 and claudin-8 gene CpGs were 25, 10 in the M.SssI group, 9 and 5 in the PBS group, 0 and 3 in the 5-azacytidine group, respectively. Compared with the PBS group, Claudin-7 and -8 were significantly reduced by M.SssI (P < 0.05), but increased by 5-azacytidine (P < 0.05) at both mRNA and protein levels. Hoechst 33342 staining revealed that HT-29 cells treated with PBS and 5-azacytidine were not significantly different, showing even blue fluorescence, round shape and same cell volume. But the M.SssI group presented more apoptotic cells with intensive white fluorescence intensity. Cytometry indicated that early apoptotic index of the M.SssI group was increased by 84.7%, compared with that of the PBS group (P = 0.002). Measurement of MTT optical density demonstrated that cell growth of the M.SssI group was significantly lower than that of the PBS group (P = 0.002), with an inhibition rate of 32.1%, whereas the proliferation of 5-azacytidine group was similar to that of the PBS group (P = 0.084).</p><p><b>CONCLUSIONS</b>Our findings suggest that M.SssI can down-regulate claudin-7, -8 mRNA and proteins in the human colon cancer HT-29 cells by up-regulating methylation status of claudin-7 and -8 gene promoters, and finally induce apoptosis and inhibit proliferation of the tumor cells.</p>

Effect of atorvastatin on expression of TLR4 and NF-κB p65 in atherosclerotic rabbits

OBJECTIVE@#To study the effect of atorvastatin on atherosclerotic rabbits.@*METHODS@#A total of 60 New Zealand male rabbits were randomly divided into the normal group, model group and atorvastatin group. The replication rabbit atherosclerotic model with immune injury combined with a high fat diet feeding was used. All rabbits were sacrificed after 3 months. TLR4 and NF-κB p65 were observed by HE staining, immunohistochemistry and western blotting.@*RESULTS@#The expression of TLR4, NF-κB p65 were significantly increased in the model group compared with the normal group. The expression of TLR4 and NF-κB p65 decreased significantly in the atorvastatin group, and there was no difference compared with the normal group.@*CONCLUSIONS@#The effect of atorvastatin on atherosclerosis may be achieved by the inhibition of the expression of TLR4 and NF-κB p65.

Dynamic proteomic analysis of liver tissue in the carbon tetrachloride-induced liver fibrosis rat model / 中华肝脏病杂志

<p><b>OBJECTIVE</b>To elucidate the dynamic physiopathologic mechanisms of liver fibrosis by investigating the differential proteome of liver tissue during progression of liver fibrosis in a chemically induced rat model.</p><p><b>METHODS</b>Following treatment with carbon tetrachloride (CCl4), livers were harvested from rats at various time points. The respective total protein extracts were resolved by two-dimensional gel electrophoresis (2-DE) and compared to identify differentially expressed protein spots, which were then analyzed by matrix-assisted laser desorption/ionization two-stage time-of-flight mass spectrometry (MALDI-TOF/TOF-MS) and identified by database querying. The differential expression of selected proteins was validated by Western blotting and immunohistochemical methods. Statistical analyses were carried out by the least significant difference method of one-way ANOVA for parametric data or by the H test for non-parametric data.</p><p><b>RESULTS</b>The severity scores of liver fibrosis increased in a time-dependent manner following CCl4 exposure (post-induction weeks: 3 less than 6 less than 9). Forty-four protein spots were different on the 2-DE maps for the different time points, among which the CK8 and CK18 proteins were identified and verified as significantly differentially expressed as liver fibrosis progressed. Protein expressions of CK8/CK18 were enhanced upon CCl4 exposure and increased over time (untreated controls: 0.113 ± 0.005/0.170 ± 0.030; CCl4-induced rats at week 3: 0.473 ± 0.046/0.530 ± 0.070, at week 6: 0.682 ± 0.087/0.780 ± 0.080, and at week 9: 0.837 ± 0.096/1.390 ± 0.130). Moreover, the rate of "a" determinant mutations for CK8/CK18 was also significantly differently between weeks 3, 6, and 9 (F = 196.085/74.088, 13.870/16.115, and 75.800/75.900, P less than 0.01).</p><p><b>CONCLUSION</b>Dynamic proteomic analysis of liver tissue can indicate physiopathologic changes in protein expressions that are related to liver fibrosis induced by CCl4. Proteins with differential expression in CCl4-damaged fibrotic liver are associated with cell growth, development and differentiation, cell proliferation and apoptosis, angiogenesis or reconstitution, oxidative stress, substance metabolism and transport, and signal transduction.</p>

To investigate the strategy of Chinese medicine for prevention and treatment of atherosclerosis based on vascular aging / 中国中西医结合杂志

Atherosclerosis, a chronic degenerative disease mainly attacks the middle-aged and the aged population as they grow old. Anti-angiocellular aging has gradually become a new strategy for atherosclerosis. In the process of atherosclerosis developing, endothelial cell renewing is speeding. Various biological function disorders that induce blood vessel aging emerge, which leads to changes of the telomere and telomerase, resulting in aged endothelial cells and dysfunction. Telomere and telomerase may play key roles in the etiological factors such as inflammation and AS plaque. In our previous work we have found that Chinese compounds with Shen invigorating effects could not only obviously ameliorate the symptoms and functions of the senility, but also show significant effects on restraining atherosclerosis. We should actively study the mechanisms of Chinese medicine for treating atherosclerosis from Shen, and the mechanisms of Shen invigorating compounds for regulating angiocellular aging through the telomere pathway, thus providing evidence for establishing vascular cell aging based atherosclerosis prevention and treatment strategies by Chinese medicine.

Mechanism of hepatocytes transdifferentiation to bile duct epithelial cells and intervention of huangqi decoction / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To investigate the mechanism of hepatocytes transdifferentiation to bile duct epithelial cells (BECs) and intervention of Huangqi decoction (HQD) on hepatic fibrosis formation in rats with secondary cholestasis.</p><p><b>METHODS</b>Seventy-five SD male rats were made into cholestatic hepatic fibrosis model animals by bile duct ligation, and randomized into the control group (n = 50) and the HQD group (n = 15). Starting from one week after modeling, they were administered orally with saline and HQD respectively for four weeks. Besides, a sham-operated group was set up with 10 rats operated by choledochus segregating only and administered after then with saline. Rats were killed in batches at different time points, i.e. each five from the control group and sham-operated group at the end of the 1st week, five from the control group for each time at the end of the 2nd, 3rd and 4th week, and all the remaining rats at the end of the 5th week. Their liver tissues were taken for histological change examination, content of hydroxyproline (Hyp) determination; protein expression of BECs marker cytokeratin 7 (CK7) and the hepatocyte specific antigen HepPar detection by Western blot, and CK7-Hep Par co-localization by laser confocal microscopy. Then IPP software was used to analyze Sirius red stained positive areas of CK7 and Hep Par, as well as the average IOD of CK7/Hep Par co-localization.</p><p><b>RESULTS</b>Hepatocytes in hepatic tissues (Hep Par positive cell) in the model rats decreased gradually along was time went by after modeling (Sham > M1w > M2w > M3w > M4w > M5w), which was in parallel with the increase of BECs (CK7 positive cells), degree of fibrosis, Hyp content and CK7 protein expression. Increasing of co-localized positive cells of CK7/Hep Par began at 1 week and reached the peak 3 weeks after modeling, then it decreased gradually. The Hep Par protein expression was negatively correlated with that of CK7; the Hep Par positive cell expression was negatively correlated with CK7 positive cell expression and collagen deposition; while the CK7 positive cell expression was positively correlated with the collagen deposition in the liver tissue. Compared with the model control group, the mortality, CK7/Hep Par co-localized positive cells, fibrosis degree, Hyp content and CK7 protein expression were lesser obviously (P < 0.01), while Hep Par positive cell and protein expressions were higher significantly in the HQD group.</p><p><b>CONCLUSIONS</b>Hepatocytes transdifferentiation to BECs might be a key pathological element for secondary cholestatic hepatic fibrosis formation; the restraining action of HQD is possibly a major action mechanism of HQD for effectively intervening and treating secondary cholestasis hepatic fibrosis.</p>

Effect of qi-tonifying and stasis-eliminating therapy on expression of vascular endothelial growth factor and its receptors Flt-1, Flk-1 in the brain of intracerebral hemorrhagic rats / 中国结合医学杂志

<p><b>OBJECTIVE</b>To investigate the effects and mechanism of qi-tonifying and stasis-eliminating (QTSE) therapy on the expression of vascular endothelial growth factor (VEGF) and its receptors Flt-1 and Flk-1 in the brains of intracerebral hemorrhagic (model) rats.</p><p><b>METHODS</b>One hundred and eighty Sprague-Dawley rats were randomly divided into six groups: the normal group (n=5), the sham-operative (SO) group (n=35), the model group (n=35), the QTSE group (n=35), the QT group (n=35) and the SE group (n=35). All the rats except those in the normal group and SO group were established into an intracerebral hemorrhage(ICH) model by intracerebral injection of collagenase type VII and the latter three were orally administered with Buyang Huanwu Decoction (a classical recipe for QTSE) or with some of its components for qi-tonification and for stasis-elimination, respectively. To the other three groups, normal saline solutions were given instead. Behavioral tests were carried out in the animals randomly chosen from each group on days 1, 2, 4, 7, 14, 21 and 28 after modeling. The expressions of VEGF, Flk-1 and Flt-1 were determined by immunohistochemistry and the number of vascular segments with positive expression in the injured brain area of the rats was calculated.</p><p><b>RESULTS</b>From day 7 onwards, the asymmetric forelimb use rate in the QTSE group recovered more significantly than that in the other model groups. In the model group, the expressions of VEGF, Flk-1 and Flt-1 appeared on day 1 and reached a peak on day 21, then weakened gradually. In the QTSE group, as compared with the other model groups, a higher level of VEGF expression was shown from day 7 (P<0.01) and a higher level of Flt-1 expression was shown from the 7th day to the 21st day (P<0.01).</p><p><b>CONCLUSION</b>QTSE therapy can up-regulate the expressions of VEGF and its receptors (Flk-1 and Flt-1) and improve the recovery of kinetic function in the ICH rats, which may be correlated with its action in modulating vascular regeneration to promote the reconstruction of microvascular networks in the damaged areas.</p>

Increasing the content of active constituents in Polygonum cuspidatum hairy root by gene transformation technology / 药学学报

To increase the content of active constituent--RE and PD of Polygonum cuspidatum hairy root, through Ri-mediated gene transformation technology, modified high salt low pH method was used to distill genome DNA of grapevine (Vitis raparia). Primer was designed according to sequence of Genebank (AF128861). Through PCR amplification obtain RS gene sequence was obtained. Binary vector pCAMBIA1300-35S-RS was constructed. Frost thawing method was used to transform Agrobacterium rhizogenes ATCC11325. Scratched aseptic seedling leaf of Polygonum cuspidatum was contaminated subsequently. DNA conformity and mRNA expression of RS gene were investigated by PCR and RT-PCR respectively. RE and PD in transgenic hairy root were determined by HPLC. For the first time successfully inducement acquires transformed RS gene hairy root of Polygonum cuspidatum. Content of active constituents--RE and PD were 17 - 187 microg x g(-1) DW and 836 - 1 970 microg x g(-1) DW, respectively, the non-transgenic hairy root was 0 - 130 microg x g(-1) DW and 190 - 320 microg x g(-1) DW. In the different root selected, the content of PD was much higher than that in non-transformed hairy roots of Polygonum cuspidatum, the highest content is 5 times, but the content of RE has not increased apparently.

Introduce Tagsk1 into salt-sensitive callus to improve the capacity of salt-tolerance by micropartical bombardment / 生物工程学报

The Tagsk1 (Triticum asetium L. glycogen synthase kinase 1) gene derived from the genome of wheat salt-tolerance mutant RH8706-49 was cloned by PCR. The special primers designed according to full length cDNA sequence of Tagsk1 (AF525086). A binary expression vector pBI121-gsk1 containing Gus and Tagsk1 was constructed. And pBI121-gsk1 was introduced into the callus induced from mature embryos of salt-sensitive wheat H8706-34 and cv. China Spring by particle bombardment. The transformed callus were screened by Kanamycin and 0.5% NaCl. The salt-tolerance callus were obtained, which showed higher ability of salt-tolerance and could diffirentiate roots and buds on the medium containing 0.5% NaCl.

Nuclear factor-kappaB mRNA and protein expression in stomach tissue of rats with gastric ulcer recurrence and effect of jianwei yuyang granule on its expression / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To observe the inflammatory reaction, nuclear factor-kappaB (NF-kappaB) mRNA and protein expression in stomach tissue of rats with gastric ulcer recurrence and the effect of Jianwei Yuyang granule (JYG) on them.</p><p><b>METHODS</b>Gastric ulcer and its recurrent lesion were successively induced by acetic acid and interliukin1-beta (IL-1beta), and the model rats were divided into the sham operation group, the model group, the omeprazole (correction of omepraxole) group and the JYG group to observe the state of chronic inflammatory cell, neutrophil count, NF-kappaBmRNA and protein expression in stomach tissue.</p><p><b>RESULTS</b>On the 16th and 92th day after administration, the increase of chronic inflammatory cell, neutrophil, NF-kappaBmRNA and protein expression in the model group was more significant than those in the sham operated group (P < 0.01), while that was lower in the JYG group than in the model group (P < 0.05, P <0.01), but with no remarkable difference to the omepraxole group. In addition, the mRNA and protein expression of NF-kappaB were correlated closely with the count of chronic inflammatory cell and neutrophil respectively (P < 0.01).</p><p><b>CONCLUSION</b>NF-kappaB may play an important role in regulating inflammatory reaction during the healing and recurrence processes of gastric ulcer induced by acetic acid. JYG may suppress inflammatory reaction by inhibiting the activation and expression of NF-kappaB in stomach tissue, which may be one of the mechanisms of JYG in preventing the recurrence of gastric ulcer.</p>

Effects of jianwei yuyang granule on inflammatory reaction and NF-kappaB expression in rat gastric mucosa of ulcer healing and recurrence / 中国中药杂志

<p><b>OBJECTIVE</b>To observe the effects of Jianwei Yuyang granule (JWYY) on inflammatory reaction and NF-kappaB expression in rat gastric mucosa of ulcer healing and recurrence.</p><p><b>METHOD</b>Gastric ulcer was induced in rat by acetic acid according Okeba's method with some modification and the recurrence model was induced by IL-1beta. Pathohistology of ulcer healing and recurrence was observed. Density of inflammatory cell infiltrating regenerative mucosa, NF-kappaB protein and mRNA expression were measured.</p><p><b>RESULT</b>JWYY had effects on improving the quality of ulcer healing, reducing the rate of ulcer recurrence, decreasing the density of inflammatory cell infiltrating regenerative mucosa and suppressing the activation and expression quantity of NF-kappaB protein and mRNA.</p><p><b>CONCLUSION</b>JWYY may promote the ulcer healing and prevent the recurrence of the gastric ulcer by suppressing the activation of NF-kappaB and the following inflammatory reaction.</p>